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2975128 = 231328607
BaseRepresentation
bin1011010110010110011000
312121011002221
423112112120
51230201003
6143433424
734200562
oct13262630
95534087
102975128
111752292
12bb5874
13802240
14576332
153db7bd
hex2d6598

2975128 has 16 divisors (see below), whose sum is σ = 6007680. Its totient is φ = 1373088.

The previous prime is 2975123. The next prime is 2975129. The reversal of 2975128 is 8215792.

2975128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2975093 and 2975102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2975123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14200 + ... + 14407.

It is an arithmetic number, because the mean of its divisors is an integer number (375480).

22975128 is an apocalyptic number.

It is an amenable number.

2975128 is an abundant number, since it is smaller than the sum of its proper divisors (3032552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2975128 is a wasteful number, since it uses less digits than its factorization.

2975128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28626 (or 28622 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 2975128 is about 1724.8559360132. The cubic root of 2975128 is about 143.8252767674.

It can be divided in two parts, 29 and 75128, that multiplied together give a palindrome (2178712).

The spelling of 2975128 in words is "two million, nine hundred seventy-five thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 13 26 52 104 28607 57214 114428 228856 371891 743782 1487564 2975128